Surname Langworthy (Langworthy 
) , all around the world, is quite a rare cognomen. The cognomen Langworthy is characteristic of Luxembourg, where it is quite a rare surname, Zimbabwe, where it is a rare surname, and Australia. In absolute terms, it is commonest in the United States, the United Kingdom, and Australia.
| VARIANT | COUNTRY |
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| Langworthy | Australia, Canada, United Kingdom, United States, Zimbabwe |
| edward langworthy American politician (1738-1802), US (b. 1738) |
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isaac pendleton langworthy (1806-1888), US (b. 1806) |
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elizabeth langworthy American public benefactor (born 1837), US (b. 1837) |
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| edward ryley langworthy British politician (b. 1797) |
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| james l. langworthy January 20, 1800–March 14, 1865, US (b. 1800) |
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| lucius h. langworthy February 6, 1807–June 9, 1865, US (b. 1807) |
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| edward langworthy August 31, 1808–January 4, 1893, US (b. 1808) |
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| leslie p. langworthy American architect, US (b. 1848) |
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| louisa beatrice langworthy Peerage person ID=704981 (b. 1857) |
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| william fitzgerald langworthy Canadian politician, CA (b. 1867) |
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| charles ford langworthy (b. 1864) |
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| speed langworthy American lyricist and businessman (1901-1999) (b. 1901) |
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| harry vincent d. langworthy (1918-2001) (b. 1918) |
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| kathleen pamela langworthy (born 1921) (b. 1921) |
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george langworthy American film director, producer and writer |
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